The Navajo Nation is continuing its fight to have human remains that were removed from Canyon de Chelly returned to the tribe.

Lawyers for the tribe and the U.S. Park Service presented arguments in court Wednesday, but there was not an immediate ruling from the 9th Circuit U.S. Court of Appeals in San Francisco.

The two sides disagree over whether the tribe consented to have the remains and related objects removed from tribal land near Chinle between 1931 and 1990. The Park Service said it has yet to determine whether other tribes have cultural affiliation with the remains.

In 2013, a U.S. district court ruled the tribe's lawsuit was premature because the Park Service hadn't identified a final action that would allow it to be sued.